Study of Water Environmental Cumulative Risk Assessment Based on Control Unit and Management Platform Application in Plain River Network

Xue Wang, Yong Pang, Xiao Wang, Qi Zhou and Rongrong Xie
Additional contact information
Xue Wang: Key Laboratory of Integrated Regulation and Resources Development of ShallowLakes of Ministry of Education, Hohai University, Nanjing 210098, China
Yong Pang: Key Laboratory of Integrated Regulation and Resources Development of ShallowLakes of Ministry of Education, Hohai University, Nanjing 210098, China
Xiao Wang: Key Laboratory of Integrated Regulation and Resources Development of ShallowLakes of Ministry of Education, Hohai University, Nanjing 210098, China
Qi Zhou: Key Laboratory of Integrated Regulation and Resources Development of ShallowLakes of Ministry of Education, Hohai University, Nanjing 210098, China
Rongrong Xie: Department of Environmental Engeering, College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China

Sustainability, 2017, vol. 9, issue 6, 1-16

Abstract: As the gradual deterioration of the environment, the method of environmental risk assessment has been developed from basing only on a single source to basing on a cumulative risk source. In accordance with the water environment features of the plain river network area, a cumulative risk assessment system of water environment in the plain river network area was established in this paper, the design process for which could be divided into three step: (1) Control unit divided reasonably was chosen as the basic unit for water quality management. (2) On that basis, according to the characteristics of the plain river network area, the cumulative risk indexes were selected. The index weight is calculated using entropy method and analytic hierarchy process (AHP), which could determine the risk grade of each control unit. (3) The cumulative risk assessment method is coupled to the existing water environment management platform. The platform with a dynamic database can realize the dynamic calculation and visualization of the cumulative risk grade. In this paper, the Zhejiang area of Taihu Basin was selected to be the research target as the typical plain river network area. Thirty-five control units were divided with regional water environment and control section. Taking the data in the year 2011 as example, the proposed cumulative risk assessment method was used to identify the control units in different grades and the results demonstrated that the numbers of high-, medium-, low- and extremely low-risk control units are 13, 12, 5 and 5, respectively. It is necessary to give priority to the high-risk control unit. Therefore, the cumulative risk assessment method based on the control unit provides an essential theoretical basis for reducing the probability of water pollution and reducing the degree of water pollution damage.

Keywords: control unit; plain river network area; cumulative risk; management platform (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/2071-1050/9/6/975/pdf (application/pdf)
https://www.mdpi.com/2071-1050/9/6/975/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:9:y:2017:i:6:p:975-:d:100743

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().